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Drawing on preparation of contours of future product

Drawing on preparation of contours of future product

"MARKING PREPARATIONS FROM TONKOLISTIC METAL AND WIRE" Purpose: to acquaint pupils with the marking of blanks of thin sheet metal and ...

Modern ways of cutting metal and its defects

Modern ways of cutting metal and its defects

Consider first the process of cutting with a chisel along with a hammer. The chisels, in their cutting part, represent the shape of a wedge. Choosing the angle of sharpening in ...

Kerner - so that the drill does not slip off!

Kerner - so that the drill does not slip off!

There are several ways of marking centering holes, but the most widely used are: a) marking with the help of a marking compass (Fig. 105, a) ...

Objects of inanimate nature Examples of the influence of inanimate nature factors on plants

Objects of inanimate nature Examples of the influence of inanimate nature factors on plants

The influence of the environment on the body. Any organism is an open system, which means it receives substance, energy, information from outside, and thus ...

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